Twitter launched Twitter #Music about a fortnight ago, a new service and app to discover new artists and music through Twitter. The system uses a platform which was acquired last year by Twitter, oWeAreHunted, but has been refined and expanded through integration with Spotify and Rdio, two large music streaming services.

Currently, the system extracts songs from iTunes, Spotify, and Rdio, but other sources will be added in the future. By default, users can only listen to short snippet of songs – 30 seconds – directly from iTunes but for Rdio and Spotify, you will need to use your credentials to log in. Based on the recent acquisition of “We Are Hunted” by Twitter, the system will help us to discover new songs and artists based on custom criteria, including the artists followed by us or our followers. read more

If you’ve been thinking about giving music service Rdio a try but don’t want to pay the $4.99 per month desktop fee or the $9.99 fee for unlimited desktop and mobile access then you’re in luck. Rdio has begun rolling out a free 7-day trial offer to anyone who syncs their Facebook account to the platform.

Before users jump in there are few things users need to know however before moving forward:

1. Streaming full songs is only available through the desktop web interface during the trial, while the Rdio iOS app will simply play 30 second song previews. read more

Facebook is getting ready to leap into the online music streaming business with partnerships that include Spotify, MOG and Rdio.

According to rumors the new partnerships will be announced at the f8 developer conference on September 22. The new program will allow users to listen to music directly from Facebook.com.

Two sources close to the partnerships told Mashable on Wednesday that Facebook will not be responsible for actually streaming any music or media but will instead rely on partners to provide content to site users. If the rumor is correct Facebook will be treating music streaming more like a platform as they already do for apps and games. read more